SQL Agent job package configuration environment user specific?

I have an SSIS solution deployed to the SSISDB catalog. It has a number of project parameters which I have setup an environment to provide values to. I then created a SQL Agent job step to run the solution making use of the environment. When a colleague goes to look at the job step they get an error stating there is no value for a parameter, go to the configurations tab and the link to the environment is not there. They then put it in and I get the error.So I assume the environment configuration in the SQL Agent Job step is linked to a user? If so how do we get around the above scenario? Thanks